Etyma
词根, 词源
🗣️ 情景例句
Bicycle theft is on the increase in the big cities.
大城市里盗窃自行车的案件与日俱增。
She is the boss in the house.
她是一家之主。
The eraser goes from one student to another first one way, then another.
橡皮擦从一个学生传给另一个学生－先从这个方向传过去，然后返回来。